no te puedo hablar de su originalidad pero si de su estado aparente que es impecable. El calibre no es manufactura Bulova sino creo que una ETA 2789.1
[TABLE="width: 100%"]
[TR="bgcolor: #F8C8C8"]
[TD="width: 250"]
Fig. 1
Fig. 2
Fig. 3
[/TD]
[TD="bgcolor: #FFD2D2"][SIZE=+1]
ETA 2789-1[/SIZE]
Features
automatic
sweep second
day: quickset, 2 languages
date: quickset
optional hack feature
Data
11.5''', Dm= 25.6mm, Do= 26.0mm
H= 5.9mm
F= 2.1mm
T= 2.7mm
25 jewels
f = 21600 A/h
power reserve 48h
Balance staff U3337
Stem W3394
Mainspring / battery
1.45 x 10.5 x 0.12 x 368mm
Hands
1.50 x 0.90 x 0.25mm
Comments about the data[/TD]
[TD="width: 40%"]
Remarks
1976-1980
like 2789, but double-language day display
family/generations:
manual / automatic respectively
21600 A/h:
2750 / 2770, 2776: no date
2752 / 2772: date
2753 / 2773: date, Triovis regulator
2758 / 2778: day, date
2759 / 2779: day, date, Triovis regulator
2761 / 2781: quick set date, high
2762 / 2782: quick set date
2763 / 2783: quick set date
2768 / 2788: day, quick set date
2769 / 2789: quick set day and date
28800 A/h:
2751 / 2771: no date
2754 / 2774: date
2760 / 2780: day, date
2764 / 2784: quick set date
- / 2790 : quick set day and date
- / 2791: quick set date, high
Example, year: signature; shock device
ca. 1975: Swiss Made, 25 Jewels; Ruby-Shock[/TD]
[/TR]
[/TABLE]